You just have to be able to make something good enough to convince the next round of investors to back you. That's the problem. I've been working on it for a w

You just have to be able to make something good enough to convince the next round of investors to back you. That's the problem. I've been working on it for a while already, and it's unlikely that 3 more months would yield a convincing prototype. I'd still have to sell the idea and myself. How much money do companies make from Unixes now? I'm not sure I get what you mean. If someone came up with an OS that was much more powerful than Unix, I'm sure there'd be some people interested, and it'd be possible to snowball from there.